In every western country - except the US and England - the loser pays for the cost of the trial (all parties' lawyer fees + the court). Just this reduces frivolous lawsuits. If you have a good case, sure, go ahead. If your case is weak, you run a real risk paying not only for your lawyers but the other side as well. (Note that there are disadvantages to loser-pays as well. Image you legitimately want to sue corporati…
This seems to reduce frivolous lawsuits (depending on who is suing/being sued) but you can ask for a cost capping order to limit the amount you have to pay out if you lose, which partially helps address the issue of "they're too big/expensive to sue".